Sotaro Shiomi is the ace of the baseball team who can no longer play baseball due to an injury. With his dreams and goals all but gone, he was about to jump off the roof when someone called out to him - Lucy Komatsubara from the brass band. "Do you want to join the brass band?" Moved by this simple question, Shiomi decides to join, but when he joins, he finds out that it's full of troubles that only a brass band can offer! A crazy youth comedy filled with "brass band cliches"! (Source: Sunday Webry, translated)